* {
  margin: 0;
  padding: 0; }

a {
  text-decoration: none; }

body {
  font-size: 16px; }

.index-ul{
    background: #ccc;
    position: fixed;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 60px;
    list-style: none; }
.index-ul li {
      width: 20%;
      height: 8%;
      line-height: 200%;
      text-align: center;
      float: left; }
